Tool cutting edge angle measuring instrument

Abstract

The utility model provides a tool cutting edge angle measuring instrument which comprises a base, and a clamping assembly is installed on the base. The clamping assembly comprises a clamping frame, a first sliding groove and a second sliding groove which are parallel to each other are formed in the clamping frame, clamping blocks are symmetrically arranged in the first sliding groove and the second sliding groove in a sliding mode, two-way lead screws are rotatably arranged in the first sliding groove and the second sliding groove, and the clamping blocks are in threaded connection with the two-way lead screws; the clamping frame is further provided with a bearing piece, a third sliding groove is formed in the bearing piece, and a hoop is arranged in the third sliding groove in a sliding mode. A laser generating piece capable of sliding in the vertical direction is further arranged on the base, and an angle indicating piece is fixed to one side of the clamping frame. According to the utility model, cutters with various shapes and sizes can be effectively fixed, the cutters are prevented from moving or shaking in the measurement process, and the stability and reliability in the measurement process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool testing, specifically a cutting edge angle measuring instrument. Background Technology

[0002] For cutting tools, especially cutting tools, the sharpness of the cutting edge and their service life are important indicators of tool performance after manufacturing. The cutting edge angle, or edge angle, is a key parameter determining both sharpness and lifespan. Generally, a smaller cutting edge angle results in a sharper blade, but it also means a smaller cross-sectional area, leading to reduced impact resistance and increased susceptibility to chipping and breakage. To balance sharpness and lifespan, the cutting edge angle needs to be carefully controlled during tool design and manufacturing. Therefore, accurate measurement and inspection of the cutting edge angle after tool production is crucial. Currently, the commonly used method for measuring cutting edge angle in tool manufacturing is based on trigonometric calculations of geometric dimensions. This method calculates the cutting edge angle by measuring the width and thickness of the cutting edge and using trigonometric relationships. The advantage of this method is its simplicity and ease of understanding and operation. However, in actual measurement, the accuracy of the cutting edge width and thickness measurements is easily affected by human operation and the precision of the measuring tools, introducing certain errors. Furthermore, the accuracy of the cutting edge angle calculated using trigonometric functions is affected by the cumulative effect of measurement errors, leading to a deviation between the final calculated result and the actual cutting edge angle, resulting in low measurement accuracy. In addition, this method requires multiple measurements and calculations, making the operation cumbersome and inefficient. Laser angle measurement technology can quickly acquire cutting edge angle data, improving measurement efficiency. However, laser angle measurement requires precise tool clamping, ensuring the tool is perpendicular during measurement to avoid errors. This places high demands on the precision of the clamp and the operator's skill level in practice. Therefore, there is an urgent need to develop a more accurate, efficient, and easier-to-operate cutting edge angle measuring device to overcome the shortcomings of existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a cutting edge angle measuring instrument to solve the problems of low measurement accuracy, cumbersome operation, and low efficiency in the existing technology.

[0004] The present invention adopts the following technical solution.

[0005] A cutting edge angle measuring instrument for cutting tools includes a base on which a clamping assembly is mounted.

[0006] The clamping assembly includes a clamping frame, on which a first sliding groove and a second sliding groove are provided that are parallel to each other. Clamping blocks are slidably and symmetrically arranged in both the first and second sliding grooves. Bidirectional lead screws are rotatably arranged in both the first and second sliding grooves. The clamping blocks are threadedly connected to the bidirectional lead screws.

[0007] The clamping frame is also provided with a support member, and the support member has a third sliding groove, in which a clamp is slidably provided;

[0008] The base is also equipped with a laser generator that can slide vertically, and an angle indicator is fixed on one side of the clamping frame.

[0009] Preferably, the clamping block is slidably provided with an extension block, and a plurality of locking through holes are provided at intervals on one side of the extension block. The clamping block is also slidably provided with a locking rod, and an abutment spring is provided between the locking rod and the clamping block.

[0010] Preferably, both the clamping block and the extension block are covered with anti-slip rubber pads on the side near the clamping tool.

[0011] Preferably, one end of the bidirectional lead screw is fixedly connected to a turning wheel.

[0012] Preferably, the angle indicator is provided with scale lines.

[0013] Preferably, the base is provided with an adjustment platform, the adjustment platform includes a slidable placement frame, the laser generator is fixed to the placement frame, and a lifting screw is rotatably provided inside the adjustment platform, the lifting screw being threadedly connected to the placement frame.

[0014] Preferably, one end of the lifting screw is fixedly connected to an adjusting handwheel.

[0015] Preferably, the adjustment platform is further provided with a locking clamp that acts on the lifting screw.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention features a clamping assembly, including a clamping frame, sliding groove, clamping block, bidirectional lead screw, support component, and clamping clamp, which together form a mechanism capable of securely clamping a cutting tool. This clamping assembly can effectively fix cutting tools of various shapes and sizes, preventing the tool from moving or shaking during measurement, thus ensuring the stability and reliability of the measurement process. By rotating the bidirectional lead screw, the movement of the clamping block can be easily and quickly controlled to clamp and release the tool. A laser generator is used to emit a laser beam to irradiate the cutting edge, and an angle indicator is used to indicate the angle. The combination of these two components enables more accurate and direct angle measurement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of another embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of the clamping frame in one embodiment of the present invention;

[0022] Figure 4 This is a top view of an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base;

[0025] 2. Clamping components;

[0026] 21. Clamping frame; 211. First sliding groove; 212. Second sliding groove;

[0027] 22. Clamping block; 221. Extension block; 2211. Locking through hole; 222. Locking rod; 223. Abutment spring; 224. Anti-slip rubber pad;

[0028] 23. Double-acting lead screw; 231. Turning wheel;

[0029] 24. Support component; 241. Third sliding groove; 242. Clamp;

[0030] 3. Angle indicator; 31. Scale lines;

[0031] 4. Laser generator;

[0032] 5. Adjustment table; 51. Placement rack; 52. Lifting screw; 53. Adjustment handwheel; 54. Locking clamp;

[0033] 6. Knives. Detailed Implementation

[0034] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0035] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0036] As attached Figure 1-4 The tool cutting edge angle measuring instrument shown mainly includes a base 1 and a clamping assembly 2 mounted on the base 1, as well as a laser generator 4 and an angle indicator 3.

[0037] The base 1 has a rectangular plate structure, and leveling screws or rubber pads can be installed at the bottom to adapt to the levelness of different work surfaces.

[0038] The clamping assembly reliably clamps and fixes the tool 6 to be measured, ensuring the stability of the tool 6's position during the measurement process. The clamping assembly 2 mainly includes a clamping frame 21, a clamping block 22, a bidirectional lead screw 23, a support member 24, and a clamping clamp 242. The clamping frame 21 is the main frame of the clamping assembly 2, and its upper surface has a first sliding groove 211 and a second sliding groove 212 that are parallel to each other. A perforation is formed between the first sliding groove 211 and the second sliding groove 212 to allow the laser to pass through. The function of the first sliding groove 211 and the second sliding groove 212 is to provide sliding guidance for the clamping block 22, ensuring that the clamping block 22 can move smoothly in a straight line.

[0039] Two clamping blocks 22 are arranged opposite each other with the center line of the clamping frame 21 as the axis of symmetry. There are two clamping blocks 22 in both the first sliding groove 211 and the second sliding groove 212. After the tool 6 is clamped by the clamping blocks 22, it is perpendicular to the horizontal plane. A bidirectional lead screw 23 is rotatably disposed in the first sliding groove 211 and the second sliding groove 212, and is threadedly connected to the clamping blocks 22. When the bidirectional lead screw 23 is rotated, the two clamping blocks 22 move simultaneously towards the center or to both sides, achieving the purpose of clamping or releasing the tool 6. When measuring a longer tool 6, the cutting edge of the tool 6 can be clamped by the clamping blocks 22 in the first sliding groove 211, while when measuring a shorter tool 6, the cutting edge of the tool 6 can be clamped by the clamping blocks 22 in the second sliding groove 212.

[0040] The support member 24 has a third sliding groove 241, which provides a sliding guide for the clamp 242. The clamp 242 cooperates with the third sliding groove 241 to achieve sliding adjustment along the direction of the third sliding groove 241, which can adapt to various shapes of cutting tools 6.

[0041] In some embodiments, to further improve the versatility of the measuring instrument, an extension block 221 is slidably provided on the clamping block 22. The function of the extension block 221 is to increase the clamping range of the clamping block 22, enabling it to accommodate larger or specially shaped cutting tools 6. A locking through hole is provided on one side of the extension block 221, and a locking rod is slidably provided on the clamping block 22. An abutment spring is provided between the locking rod and the clamping block 22. When the extension block 221 slides to a predetermined position, the locking through hole engages with the locking rod, and the abutment spring provides a preload force, causing the locking rod to engage with the locking through hole, thereby achieving locking. When it is necessary to adjust the position of the extension block 221, the locking rod can be manually slid to overcome the elastic force of the abutment spring, thereby releasing the lock and moving the extension block 221.

[0042] In some embodiments, to prevent damage to the surface of the tool 6 during clamping and to increase friction and improve clamping stability, both the clamping block 22 and the extension block 221 are covered with anti-slip rubber pads 224 on the side closest to the clamping tool 6. The anti-slip rubber pads 224 are made of materials such as nitrile rubber or silicone rubber. The anti-slip rubber pads 224 are fixed to the clamping block 22 and the extension block 221 by adhesive bonding.

[0043] In some embodiments, to facilitate manual rotation of the bidirectional lead screw 23 by the operator to control the movement of the clamping block 22, one end of the bidirectional lead screw 23 is fixedly connected to a turning wheel 231. The turning wheel 231 is configured as a circular handwheel structure, and the outer edge may be provided with anti-slip texture for easy gripping and rotation by the operator.

[0044] In some embodiments, in order to facilitate operators to read the cutting edge angle value of the tool 6 intuitively and improve the accuracy and convenience of angle reading, the angle indicator 3 is provided with scale lines 31.

[0045] In some embodiments, to facilitate the adjustment of the height of the laser generator 4 to accommodate cutters 6 of different heights, an adjustment platform 5 is provided on the base 1. The adjustment platform 5 mainly includes a placement frame 51 and a lifting screw 52. The placement frame 51 is slidably placed on the adjustment platform 5. When the lifting screw 52 is rotated, the placement frame 51 is driven to slide vertically through a threaded connection, thereby realizing the height adjustment of the laser generator 4.

[0046] In some embodiments, in order to facilitate the operator to manually rotate the lifting screw 52 to adjust the height of the laser generator 4, one end of the lifting screw 52 is fixedly connected to an adjusting handwheel 53.

[0047] In some embodiments, to prevent the laser generator 4 from moving unexpectedly during measurement and to ensure the stability and accuracy of the measurement, a locking block 54 is also provided on the adjustment table 5. The function of the locking block 54 is to lock the lifting screw 52, ​​fixing it at the set height position. Figure 1In the embodiment shown, the locking clamp 54 adopts a bolt-fastening structure. By tightening the bolt, the locking clamp 54 clamps the lifting screw 52, ​​thereby achieving locking.

[0048] The working principle of this utility model is as follows:

[0049] First, the operator places the tool to be tested 6 on the clamping assembly 2. The handle of the tool 6 is fixed using the support 24 and the clamp 242. Then, by operating the turning wheel 231, the bidirectional lead screw 23 is driven to rotate. The bidirectional lead screw 23 drives the clamping block 22 to slide symmetrically within the first sliding groove 211 and the second sliding groove 212, clamping and fixing the cutting edge of the tool 6 to ensure the stability of the tool 6's position during measurement. After fixing the tool 6, the laser generator 4 is activated. The incident light emitted by the laser generator 4, after pre-adjustment, can accurately illuminate the cutting edge of the tool 6. After the laser beam illuminates the cutting edge of the tool 6, it will reflect off the surface of the cutting edge to form reflected light. The reflected light will be projected onto the angle indicator 3 fixed to one side of the clamping frame 21, forming a light spot or beam on the angle indicator 3. The operator can intuitively obtain the cutting edge angle measurement value of the tool 6 under test by reading the preset scale line 31 on the angle indicator 3 according to the position of the light spot or light patch on the angle indicator 3.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool edge angle measuring instrument comprising a base, characterised in that, The base is provided with a clamping assembly; The clamping assembly comprises a clamping frame, first and second sliding grooves parallel to each other are formed in the clamping frame, clamping blocks are symmetrically and slidably arranged in the first and second sliding grooves, and bidirectional screws are rotatably arranged in the first and second sliding grooves and are in threaded connection with the clamping blocks; A supporting piece is further arranged on the clamping frame, a third sliding groove is formed in the supporting piece, and a hoop is slidably arranged in the third sliding groove; A laser generating piece is further arranged on the base and can slide in the vertical direction, and an angle indicating piece is fixed to one side of the clamping frame.

2. A tool edge angle measuring instrument according to claim 1, wherein An extension block is slidably arranged on the clamping block, a plurality of locking through holes are arranged on one side of the extension block in intervals, a locking rod is slidably arranged on the clamping block, and an abutting spring is arranged between the locking rod and the clamping block.

3. A tool edge angle measuring instrument according to claim 2, wherein The side of the clamping block and the side of the extension block close to the clamping tool are both covered with anti-skid rubber pads.

4. The tool edge angle measuring instrument of claim 1 wherein, One end of the bidirectional screw is fixedly connected with a screwing wheel.

5. The tool edge angle measuring instrument of claim 1 wherein, The angle indicating piece is provided with a scale line.

6. The tool edge angle measuring instrument of claim 1 wherein, An adjusting table is arranged on the base, the adjusting table comprises a slidable placing frame, the laser generating piece is fixed to the placing frame, a lifting screw is rotatably arranged in the adjusting table, and the lifting screw is in threaded connection with the placing frame.

7. A tool edge angle measuring instrument according to claim 6, wherein One end of the lifting screw is fixedly connected with an adjusting hand wheel.

8. A tool edge angle measuring instrument according to claim 6, wherein The adjusting table is further provided with a locking clamp for the lifting screw.

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